20 lines
457 B
JavaScript
20 lines
457 B
JavaScript
'use strict';
|
|
|
|
var isFinite = require('math-intrinsics/isFinite');
|
|
|
|
var modulo = require('./modulo');
|
|
var ToNumber = require('./ToNumber');
|
|
var truncate = require('./truncate');
|
|
|
|
// https://262.ecma-international.org/14.0/#sec-touint8
|
|
|
|
module.exports = function ToUint8(argument) {
|
|
var number = ToNumber(argument);
|
|
if (!isFinite(number) || number === 0) {
|
|
return 0;
|
|
}
|
|
var int = truncate(number);
|
|
var int8bit = modulo(int, 0x100);
|
|
return int8bit;
|
|
};
|